File: nest-align-1.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (43 lines) | stat: -rw-r--r-- 665 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
/* Test for alignment handling when a variable is accessed by nested
   function.  */
/* Origin: Joey Ye <joey.ye@intel.com> */

/* Force bigger stack alignment for PowerPC EABI targets.  */
/* { dg-options "-mno-eabi" { target powerpc-*-eabi* } } */

#include <stddef.h>

typedef int aligned __attribute__((aligned));
extern void abort (void);

void
check (int *i)
{
  *i = 20;
  if ((((ptrdiff_t) i) & (__alignof__(aligned) - 1)) != 0)
    abort ();
}

void
foo (void)
{
  aligned jj;
  void bar ()
    {
      jj = -20;
    }
  jj = 0;
  bar ();
  if (jj != -20)
    abort ();
  check (&jj);
  if (jj != 20)
    abort ();
}

int
main()
{
  foo ();
  return 0;
}